Patent US3194399A successfully refreshed from Google Patents.
US3194399A
Expired / Lapsed
US
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Suction filter apparatus
Assignee: Henry Manufacturing Co Inc
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Filing: 1961-05-17
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Granted: 1965-07-13
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Expires: 1981-05-17
Abstract
No abstract record available.
Inventors
- 👤 Harold H Harms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:06
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0012; B01D21/02; B01D21/04; B01D21/24; B01D21/30; B01D21/34; B01D29/00; B01D29/01; B01D29/05; B01D29/60; B01D29/605; B01D29/62; B01D29/64; B01D29/6469; B01D35/00; B01D35/14; B01D35/157; B01D35/1573; B01D36/00; B01D36/04; B01D2201/00; B01D2201/20; B01D2201/204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN APPARATUS FOR SEPARATING PARTICLES FROM A LIQUID, COMPRISING: A FILTERING MEANS HAVING A FILTER SCREEN, SUCTION MEANS TO FORCE SAID LIQUID THROUGH SAID SCREEN, A RESERVOIR FOR CLEAN LIQUID REMOVED FROM SAID FILTERING MEANS, DUCT MEANS FOR CLEAN LIQUID BETWEEN SAID FILTERING MEANS AND SAID RESERVOIR, MEANS FOR REMOVING CLEAN LIQUID FROM SAID RESERVOIR, MEANS TO CLEAN INTERMITTENTLY A PART OF SAID SCREEN, MEANS TO STOP SAID SUCTION MEANS FOR FORCING LIQUID THROUGH SAID SCREEN BEFORE AND DURING THE CLEANING OF SAID SCREEN, AND MEANS CONNECTED TO SAID DUCT MEANS FOR CONTROLLING THE OPERATION OF SAID CLEANING MEANS SAND SAID STOPPING MEANS BY THE FLOW OF LIQUID FROM SAID FILTERING MEANS THROUGH SAID DUCT MEANS AND TO SAID RESERVOIR.
Claim 2
Independent Claim
120 words
AN APPARATUS FOR SEPARATING PARTICLES FROM A LIQUID, COMPRISING: A FILTERING MEANS HAVING A FILTER SCREEN, SUCTION MEANS TO FORCE SAID LIQUID THROUGH SAID SCREEN, A RESERVOIR FOR CLEAN LIQUID REMOVED FROM SAID FILTERING MEANS, DUCT MEANS FOR CLEAN LIQUID BETWEEN SAID FILTERING MEANS AND SAID RESERVOIR, MEANS FOR REMOVING CLEAN LIQUID FROM SAID RESERVOIR, MEANS TO CLEAN INTERMITTENTLY A PART OF SAID SCREEN, MEANS TO STOP SAID SUCTION MEANS FOR FORCING LIQUID THROUGH SAID SCREEN BEFORE AND DURING THE CLEANING OF SAID SCREEN, AND MEANS CONNECTED TO SAID DUCT MEANS FOR CONTROLLING THE OPERATION OF SAID CLEANING MEANS SAND SAID STOPPING MEANS BY THE FLOW OF LIQUID FROM SAID FILTERING MEANS THROUGH SAID DUCT MEANS AND TO SAID RESERVOIR.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |